// This is a basic Flutter widget test.
import 'dart:math' as math;

// To perform an interaction with a widget in your test, use the WidgetTester
// utility in the flutter_test package. For example, you can send tap and scroll
// gestures. You can also use WidgetTester to find child widgets in the widget
// tree, read text, and verify that the values of widget properties are correct.

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'dart:math' as math;

void main() {
  // 测试用例
  double num = 10;
  print(math.max(0, -10));
}
